Home / 6,420.06-9,625.23-4,082.40

Finding the Fourth Proportional to 6,420.06, 9,625.23 and 4,082.40

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Solution

The fourth proportional to 6,420.06, 9,625.23 and 4,082.40 is: 6,120.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.06 : 9,625.23 = 4,082.40 : x
  2. Step 2: Convert to fraction form
    6,420.06/9,625.23 = 4,082.40/x
  3. Step 3: Cross multiply
    6,420.06x = 9,625.23 × 4,082.40
  4. Step 4: Simplify right side
    6,420.06x = 39,294,038.95
  5. Step 5: Solve for x
    x = 39,294,038.95/6,420.06
  6. Step 6: Final answer
    x = 6,120.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.